The main function of the Roots blower for sewage treatment is aeration, which in common parlance is to provide oxygen to bacteria.

In the sewage treatment industry, because the sewage pond needs to be drummed into the oxygen for microbial oxidative decomposition, in the sewage treatment industry, the Roots blower can be based on the different depths of the water, the different tonnages of treated water, to provide a quantitative amount of oxygen, to promote the oxidative decomposition of microorganisms.

Three-lobe Roots blower in the sewage treatment is the core equipment, fan performance can directly determine the effect of sewage treatment, biological treatment of sewage, in order to promote the growth of aerobic microorganisms, must provide sufficient oxygen, aerobic microorganisms can promote the metabolism, decomposition of sewage suspended solids and nitrogen and phosphorus and other organic compounds.

Industrial wastewater, domestic sewage, such as paper wastewater, alcohol wastewater, printing and dyeing wastewater and other wastewater treatment industries can be used.